TW200607224A - Symmetrical linear voltage controlled oscillator - Google Patents

Symmetrical linear voltage controlled oscillator

Info

Publication number
TW200607224A
TW200607224A TW094119387A TW94119387A TW200607224A TW 200607224 A TW200607224 A TW 200607224A TW 094119387 A TW094119387 A TW 094119387A TW 94119387 A TW94119387 A TW 94119387A TW 200607224 A TW200607224 A TW 200607224A
Authority
TW
Taiwan
Prior art keywords
circuit
frequency
tuning circuit
signal
band
Prior art date
Application number
TW094119387A
Other languages
Chinese (zh)
Other versions
TWI278177B (en
Inventor
Bour-Yi Sze
Chih-Long Ho
Ming-Chieh Huang
Original Assignee
Via Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Via Tech Inc filed Critical Via Tech Inc
Publication of TW200607224A publication Critical patent/TW200607224A/en
Application granted granted Critical
Publication of TWI278177B publication Critical patent/TWI278177B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1212—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1212—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
    • H03B5/1215—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair the current source or degeneration circuit being in common to both transistors of the pair, e.g. a cross-coupled long-tailed pair
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1228—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more field effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1262—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements
    • H03B5/1265—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements switched capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0958—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation by varying the characteristics of the voltage controlled oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/025—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements
    • H03B2201/0266—Varying the frequency of the oscillations by electronic means the means being an electronic switch for switching in or out oscillator elements the means comprising a transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

A system is provided to improve frequency stability and system linearity in voltage controlled oscillators. A symmetrical voltage controlled oscillator system embodying the present invention comprises a frequency tuning circuit for receiving a frequency tuning signal, a band tuning circuit coupled with the frequency tuning circuit in a parallel fashion having at least one switching circuit for receiving at least one band tuning signal and at least one switching signal, a core circuit coupled with the frequency tuning circuit and the band tuning circuit for providing a first output and a second output that are complementary to each other, wherein upon asserting the switching signal, and upon adjusting the frequency tuning signal and the band tuning signal, the switching circuit is enabled for configuring the band tuning circuit to join the frequency tuning circuit for determining a predetermined output frequency based on a total inductance and total capacitance provided by the core circuit, the frequency tuning circuit and the band tuning circuit.
TW094119387A 2004-08-04 2005-06-10 Symmetrical linear voltage controlled oscillator TWI278177B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59926004P 2004-08-04 2004-08-04

Publications (2)

Publication Number Publication Date
TW200607224A true TW200607224A (en) 2006-02-16
TWI278177B TWI278177B (en) 2007-04-01

Family

ID=35042139

Family Applications (3)

Application Number Title Priority Date Filing Date
TW094108832A TWI257201B (en) 2004-08-04 2005-03-22 Signal modulated voltage controlled oscillator system
TW094119387A TWI278177B (en) 2004-08-04 2005-06-10 Symmetrical linear voltage controlled oscillator
TW094119391A TWI311854B (en) 2004-08-04 2005-06-10 Highly-linear signal-modulated voltage controlled oscillator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW094108832A TWI257201B (en) 2004-08-04 2005-03-22 Signal modulated voltage controlled oscillator system

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW094119391A TWI311854B (en) 2004-08-04 2005-06-10 Highly-linear signal-modulated voltage controlled oscillator

Country Status (3)

Country Link
US (3) US7102454B2 (en)
CN (3) CN100461618C (en)
TW (3) TWI257201B (en)

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US7394329B2 (en) * 2005-09-14 2008-07-01 Silicon Laboratories Inc. Analog varactor
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US8049302B2 (en) * 2005-09-30 2011-11-01 Broadcom Corporation On-chip capacitor structure with adjustable capacitance
US7675138B2 (en) 2005-09-30 2010-03-09 Broadcom Corporation On-chip capacitor structure
US20070241834A1 (en) * 2006-03-28 2007-10-18 Kun-Seok Lee Frequency fine- tuning circuit and voltage-controlled oscillator including the same
KR20070103209A (en) * 2006-04-18 2007-10-23 삼성전자주식회사 Voltage controlled oscillator for multi-band and rf communication apparatus having the same
US7564275B2 (en) * 2006-06-10 2009-07-21 Freescale Semiconductor, Inc. Switching circuit and a method of driving a load
DE102006041804B4 (en) * 2006-09-06 2014-04-03 Infineon Technologies Ag Phase-locked loop
TWI321909B (en) * 2006-11-17 2010-03-11 Sunplus Technology Co Ltd Switch capacitance and varactor bank applied to voltage controlled oscillator having constant kvco
WO2008123016A1 (en) * 2007-03-09 2008-10-16 Panasonic Corporation Local oscillator, reception device and electronic device using the same
US7760032B2 (en) * 2007-04-20 2010-07-20 Tialinx, Inc. Self-compensating voltage-controlled oscillator
US7605667B2 (en) * 2007-04-26 2009-10-20 Mediatek Inc. Frequency synthesizer with a harmonic locked phase/frequency detector
US7675373B2 (en) 2007-05-29 2010-03-09 Infineon Technologies Ag Voltage controlled oscillator circuit and a method for configuring a voltage controlled oscillator circuit
JP2008311820A (en) * 2007-06-13 2008-12-25 Toshiba Corp Voltage controlled oscillator and oscillation control system
TWI352508B (en) * 2007-11-30 2011-11-11 Univ Nat Taiwan Transistor-based voltage-controlled oscillator and
TWI376100B (en) * 2008-01-07 2012-11-01 Mediatek Inc Mixed-mode phase locked loops and linear phase correction units
CN101682293B (en) * 2008-03-28 2013-10-30 松下电器产业株式会社 Voltage controlled oscillator, and pll circuit and wireless communication device using voltage controlled oscillator
US7834712B2 (en) * 2008-10-09 2010-11-16 Altera Corporation Techniques for providing option conductors to connect components in an oscillator circuit
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US8044739B2 (en) * 2009-06-09 2011-10-25 Qualcomm Incorporated Capacitor switching circuit
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WO2012054826A1 (en) * 2010-10-21 2012-04-26 Cornell University An oscillator circuit and system
CN102158224A (en) * 2011-04-12 2011-08-17 广州润芯信息技术有限公司 Voltage-controlled oscillator (VCO)
WO2013102160A1 (en) * 2011-12-30 2013-07-04 Tensorcom, Inc. Method and apparatus of capacitively coupling an adjustable capacitive circuit in a vco
US9236872B2 (en) * 2012-03-12 2016-01-12 Seiko Epson Corporation Voltage-controlled oscillator, signal generation apparatus, and electronic device
CN104135233B (en) * 2013-05-02 2017-05-10 成都振芯科技股份有限公司 Low-noise voltage-controlled oscillator biasing circuit and frequency source self-calibration method
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Also Published As

Publication number Publication date
CN100514839C (en) 2009-07-15
TW200607225A (en) 2006-02-16
CN100461618C (en) 2009-02-11
CN1694347A (en) 2005-11-09
US20060028281A1 (en) 2006-02-09
TWI257201B (en) 2006-06-21
CN100514840C (en) 2009-07-15
TW200607223A (en) 2006-02-16
US7102454B2 (en) 2006-09-05
US20060028283A1 (en) 2006-02-09
CN1694348A (en) 2005-11-09
US7298225B2 (en) 2007-11-20
CN1671037A (en) 2005-09-21
TWI311854B (en) 2009-07-01
TWI278177B (en) 2007-04-01
US7209017B2 (en) 2007-04-24
US20060028282A1 (en) 2006-02-09

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